Startup Security Utility won't start on Apple Silicon Mac Mini

I have a new Apple Silicon Mac Mini that I'm using for 3rd party kext development for a usb audio interface. I'm trying to launch Startup Security Utility to lower the security policy to allow for kext loading. I get to the view to select the drive to unlock (drive is encrypted) but when I click the "Unlock..." button the system just hangs there. I can move the mouse and the dialog but it never gets to the place where opening the utility is an option.
Startup Security Utility won't start on Apple Silicon Mac Mini
 
 
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